20408177664

素因数分解:

$2^{10}\times 3^3\times 7^1\times {\mathrm{105449}}^1$

素因数の和:105485

約数の個数: 176

約数和(自身を含む): 69073968000

約数和(自身を除く): 48665790336

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 84, 96, 108, 112, 126, 128, 144, 168, 189, 192, 216, 224, 252, 256, 288, 336, 378, 384, 432, 448, 504, 512, 576, 672, 756, 768, 864, 896, 1008, 1024, 1152, 1344, 1512, 1536, 1728, 1792, 2016, 2304, 2688, 3024, 3072, 3456, 3584, 4032, 4608, 5376, 6048, 6912, 7168, 8064, 9216, 10752, 12096, 13824, 16128, 21504, 24192, 27648, 32256, 48384, 64512, 96768, 105449, 193536, 210898, 316347, 421796, 632694, 738143, 843592, 949041, 1265388, 1476286, 1687184, 1898082, 2214429, 2530776, 2847123, 2952572, 3374368, 3796164, 4428858, 5061552, 5694246, 5905144, 6643287, 6748736, 7592328, 8857716, 10123104, 11388492, 11810288, 13286574, 13497472, 15184656, 17715432, 19929861, 20246208, 22776984, 23620576, 26573148, 26994944, 30369312, 35430864, 39859722, 40492416, 45553968, 47241152, 53146296, 53989888, 60738624, 70861728, 79719444, 80984832, 91107936, 94482304, 106292592, 107979776, 121477248, 141723456, 159438888, 161969664, 182215872, 188964608, 212585184, 242954496, 283446912, 318877776, 323939328, 364431744, 377929216, 425170368, 485908992, 566893824, 637755552, 728863488, 755858432, 850340736, 971817984, 1133787648, 1275511104, 1457726976, 1700681472, 2267575296, 2551022208, 2915453952, 3401362944, 5102044416, 6802725888, 10204088832, 20408177664]

約数ペア:

[(1, 20408177664), (2, 10204088832), (3, 6802725888), (4, 5102044416), (6, 3401362944), (7, 2915453952), (8, 2551022208), (9, 2267575296), (12, 1700681472), (14, 1457726976), (16, 1275511104), (18, 1133787648), (21, 971817984), (24, 850340736), (27, 755858432), (28, 728863488), (32, 637755552), (36, 566893824), (42, 485908992), (48, 425170368), (54, 377929216), (56, 364431744), (63, 323939328), (64, 318877776), (72, 283446912), (84, 242954496), (96, 212585184), (108, 188964608), (112, 182215872), (126, 161969664), (128, 159438888), (144, 141723456), (168, 121477248), (189, 107979776), (192, 106292592), (216, 94482304), (224, 91107936), (252, 80984832), (256, 79719444), (288, 70861728), (336, 60738624), (378, 53989888), (384, 53146296), (432, 47241152), (448, 45553968), (504, 40492416), (512, 39859722), (576, 35430864), (672, 30369312), (756, 26994944), (768, 26573148), (864, 23620576), (896, 22776984), (1008, 20246208), (1024, 19929861), (1152, 17715432), (1344, 15184656), (1512, 13497472), (1536, 13286574), (1728, 11810288), (1792, 11388492), (2016, 10123104), (2304, 8857716), (2688, 7592328), (3024, 6748736), (3072, 6643287), (3456, 5905144), (3584, 5694246), (4032, 5061552), (4608, 4428858), (5376, 3796164), (6048, 3374368), (6912, 2952572), (7168, 2847123), (8064, 2530776), (9216, 2214429), (10752, 1898082), (12096, 1687184), (13824, 1476286), (16128, 1265388), (21504, 949041), (24192, 843592), (27648, 738143), (32256, 632694), (48384, 421796), (64512, 316347), (96768, 210898), (105449, 193536)]